Traveling computing attachment.



E. C. WALTER.

TRAVELING COMPUTING ATTACHMENT.

' APPLICATION FILED JULY 6.1911

1,295,396. Patented Feb. 25, 1919.

awn

E. C. WALTER.

TRAVELING COMPUTING ATTACHMENT.

APPLICATION men JULY 6. 1911.

1,295,396. Patented Feb. 25, 1919.

8 SHEETS-SHEET 2- I I r f 4/ E. C. WALTER.

TRAVELING COMPUTING ATTACHMENT.

APPLICATION FILED IULY 6, I9II. 1,295,396. Patented Feb. 1919.

8 SHEETS-SHEET 3.

E. C.WALTER.

TRAVELING COMPUTING ATTACHMENT.

APPLICATION FILED JULY 6.1911.

1,295,396. Patented Feb. 25, 1919.

8 SHEETS EEK 4.

E. C. WALTER. TRAVELING COMPUTING ATTACHMENT.

APPLICATION FILED JULY 6,19!!- 1,295,396. Patented Feb. 25, 1919.

8 SHEETS-SHEET 5.

l T A A A l l A A l n E. C. WALTER.

TRAVELING COMPUTING ATTACHMENT.

APPLICATTON FILED JULY 6.19m.

1,295,396. T Patented Feb.25,1919,

E. C. WALTER.

TRAVELING COMPUTING ATTACHMENT.

APPLICATION FILED }ULY 6.1911- 1,295,396. Patented Feb. 25, 1919.

8 3HEETSSHEET 7-.

MINIMUM...

E. C. WALTER.

TRAVELING COMPUTING ATTACHMENT. APPLICATION FILED JULY 6.1911.

1,295,396. Patented Feb. 25, 1919.

8 SHEETS-SHEET 8.

NAHUM To all 107mm may concern niavvau izo dwamnn, or NE'w YORK, 1v. Y., AS-SIGNOR To HARRY T. AMBROSE, or

- omsnnnwmnsnr.

' 1 RAVELING COMPUTING ATTACHMENT.

Be it known that I, EDWARD 'a'citizen of the United States, residing at New York, in the county of New York and it may be. utilized'to compute for several.

' of amounts crosswise of the work-sheet.

Another-object is to provide mechanism State of New York, have invented certain new and useful Improvements in Traveling Computing. Attachments, of which the following isa specification, reference being had therein to the-[accompanying drawing.

-'This invention. relates to computing machinesand particularly to the class which includes a' computing machine cooperatively, combined with a typewriting machine.

The object ofthe invention is to provide Iastructureof the kind referred to wherein the "computing machineis adapted to. be shiftedon a suitable support intoany of aplurality ofoperating positions, whereby different columns, or to compute for a series for efi'ecting; a movement of the computer on its support, and means for controlling the operation of such mechanism.

Afurther object isto provide means for controlling such movement of the computer,

including devices for arresting it at prede- 1 ter'mi'ned points in its movement. an

A further object is to provide self-propelling means for effecting a movement of the computer on its support in one direction and'means thereon to co-act with means car'- ri'edby the typewriting machine for efi'ecting a return movement of the computer under the control-iota part of the typewriting machine. v

' H further object is to provide means for elfe'cting a cooperative engagement of a part ofthe typewriting machine with the computer to eifect a return movement of the latter to normal position, such means remaining inactive whengsaidcomputer is moved in the opposite direction and independently inga. carriage,

of said cooperatingpart of thetypewriting rack;

puter-arranged contiguous tosaid tabulator', witlr cooperating means carried by these" several ins'trumentalities for controlling the.

movement ofany one or more of them by other of the instrumentalities."

Specification of Letters Patent.

G. WALTER,

vention.

' port in a substantially; permanent position;

3 PATENTQFFIQE- I U Patented Feb. 25,1919. Application filed Jul 6,1911. Serial No. $37,200. V

invention resides in the structures, mecha-' the construction and relative arrangement of these, all as more fully hereinafter (le scribed and claimed.

Inthe accompanyingdrawings, I have,

nism, devices and instrumentalities, and in by way ofexample, illustrated embodiments of my invention; but it is to be understood that such embodiments may be modified without departing fromthe spirit of and 2, certain parts appearing in section;

,Fighet is a view in perspective, on an enlarged scale, of a portion of the computer, with themeans for actuating the positioning and holding mechanism;

Fig. 5 is a fragmentary view in side elevation showing the posltion of the parts when the computer-holding mechanism is arranged for retaining the same on its sup Fig. 6 is a collective view of the lower portion of .the actuating lever;

Fig. '1 is a view in rear elevation of the computer as mounted upon its supporting structure;

Fig. 8 is a view in sectional elevation of the computer-rack, with the computer-stops mounted thereon and showing, also, the

means. for eifecting longitudinal adjustment of the rack;

Fig. 9 is a view in detail on an enlarged scale of the right-hand end-stop;

Fig. 10 is a view in sectional elevation of'the stop shown in Fig. 9, the same being illustrated as locked to 1ts supporting Fig. 11 is aview in perspective of a modified form of construction, and whereby the computer is adapted to be shifted in two ,1 directions laterally;

Fig. 12 is a view in sectional elevation of the structure illustrated in Fig. 11; I

Fig. 13 is a fragmentary view, in perspective, illustrating the instrumentalities for actuating the computer-holding member;

Fig. 14 is a view in sectional elevation controlling the position oi thecomputer by means of .a tabulator device;

Figj15 is a'i'ragmentary view, in rear elevation thereof; and

Fig. 16 is a view plan ofthe means interposed between the computer and tabu lator device for actuating the mechanism for connecting the computer to the tabulacausing the opposite end of said lever to be tor-device. -v I v Referring to the drawings, and to Figs. 1

- t'o'12, the-nim 1eral -1 designates, generally, a

" -permit it to'traveltransversely-of an under--- typewriting machine which, in this instance, is of the so-ca-lled fiat-platen form, and 111* lying-plateir under the action of carriagequitablysupported propellingmechanism-3 d On :the line-spacing carriage is suitably supported a computing machine des1gnated- I the pos tion of the computer:by shifting it generally by 5.

The means -forsupporting the computing Extending between thetwo side-members- 2 of said line-spacing carriage are-two bars 7- and.8;= Totraverse the bar 7 the C0111? puting. machine is provided with a pair of rollers 9, preferably of the form shown, and

t with a pairof guide rollerslO. -Similarly,

to traverse the bar 8 the com )uter is 3.130-

vided with a pair'of rollers .11', andwalso-fl with a pair of retaihing rollers 12;;adaptedi. to travel upon the lower edge of said bar 8.;

7 The means for effecting atraveling move ment of the computer in one di1 'ection'- namely, in the direction of travel of thelletter-spacin g 'carriageincludes the followin g IHSiZIUlDBIIiZfillblGSfi v V The supporting-bar 8 is provided with a rack 13 with which meshes-agcai n Mucus. ried by a portlon i iot-the computer. '.,;Fas

tenedto the gear-is a pinion li) "which, in

a spring-actuated barrel 1 6 .3' Eh-ese devices letter-spacingof said carriage 3;. It will be seen, thereforefthat I have thus provided a have a movement in two directions.

The means for moving sald computer in a self-propelled computer which is adapted todirection opposite to its traveling movement inclu les the following structure: I? l Adjustably' mounted on thememberskQiof the line-spacing carriage -is cagraclcbar adapted to support one-'or more computer wf ariesting elements 18; these elements being,

on i the letter-spdoing carriage 3 is a tabulator-devicemarked 6. a

latch in onedirection. .1

in this instance, computer-stops which are adjustably and removably, secured on said rak-bar 1.7. On said bar aref'also supported adjustable end-stops l9 and 20. The stop 19 comprises a body-portion 19 (Figs. 8, 9

and 10) and a oammed extension'l9 against which a bellicrank-lever 21, pivoted at 22 to the side of the computer 5, is adapted to engage. This lever 21 is rocked on its fulcrum '22 when it engages and rides along the cammed extension 19 of the stop 19, thereby 1 toward the left. This IHOYGIDQDt Of the computer transmits rotation to the spring,-actuated barrel 16 and tensions the. contained spring lb to store ipower therein for propelling the computer toward the right after it has been released fro-mengagement with the letter-spacing carriage. This release is effected when =the.belhcrank-lever abuts against and rides upon'a cannned projection 20 -of the OtllGPGIId-S EOP -QO whiclnas will be understood,:will'have besr disposed on the rack l7:at=the leftof the stop 1 9. Vhen the computerflhas been releasedyfron'i the letterspacing carriage, the computer self-propell in'g mechanism, "afo1'enientioned,.causes the computer toitravel toward the right.

- L The 1 computer stops 18 constitute-yrneans rorarresting the travel lot-the computer and positioningait atipredetermined points 'in re- 1211310111 tOthGxWOIlC- being-performed on the -Work-sh-cet sustained; byi-theg plaiten 4. To the end that said sto-psishall performl their defined function, I. provide: means on the computer for cooperating withthem to arrest the movement l o-f the: computer when V p acting-under the-infiuenceaofi its. self-proconstitute a power-devlce-for propelhng the computer on its support 'in theflir tio f polling mechanism i These; means; comprise,

in tl-iisinstance', a'latohihg element 24 pivoted .at 25"and carrying 12L stud 24?, on the side of, the computer 5, and: controlled by a projection or lug 27 adaptedtoi'engage with f r m 'heiirtsaid 1 latch" engages-oneself another 'e positively arrestedgz and it :will then e eld at that pointtiwhile the computation the computer and limit the movement of the 30 vldes a: convenient means and one Wl'11 Qh i forms anelemnt astructu'r'e which, constitutes the subject-matter of another appll is eiieo'ted. being accomplished, the: latch; is' disengaged from that pantie-1'1 lar stop," in" a inan'ncr presently to the de thenext iadjacentstop 1 8 to the right; lVhen" theilast of thes'e' stops 18 fh as been passed, the computer "will" again "engage the v right ihan'd'endfstopf 19, as already describedL-' at29 on the side of computer, and which cation of nine, filed Julv 6, 1911, "Serial No. 637 ,199. It is to be iinde rstoodth'at I: may provide other means, for controll ng the latch; but thistactuating handle, being an element already in the structurfe; prodoes no ne ess at t eor fa oe a is efi auxiliary; part, since this handle HlUSt bB operated, in any event, to produce ,a "co nputation in thencon puter, before thelatter beginsitsshifting movement} v A} ,ThelQWBI end of the handle 28 carries a latch engaging arm 30 and .controlsthe,

movement o fthe same in one direction: Tof

this ,e1 1d,, the handle is provided, With an incut 31 forming a fiat-faced shoulder 2;, Withvvhich cooperates the corner 33 of the latch 3O, The corner ,34 of the latch oppo- ,site'to.theshouldered portion. 33 is rounded,-

as shown. By this construction, the shoul der- 32Will form an abutment'for the latch When'the handle28 is rocked on its axis 29 to lift the latch 24. The curved form ofthe upper end of the latch permits itmtobe rocked upon its axis 29fthis being. the same as thatflofgthe handle i28 so that, if it is found desirable :not to liftthelatchatany point, the latch engaging element 30 may;

be shifted upwardlynnd out of engagement.

; already explained; a:

above the stud 24:?3onxthe latch This permitsthecomputer tomemain stationary? in a. 7 predeterminedgpo'sition and ,not be; under the control ofrthe' detterspacing carriage; as

It will be uh'derstoodilthat lwhenever the computer hasfiheeril brou lit tola predeter mined: position iby theengagement: ofthe J latch 24'1With anyone or another. of the"'{ 5 stops" l8 'it 2 Willi: beheld l in v1 that position While printing is the typewriter. In this situation; the let I terspm'ing carnage 3*W1'l-l underlie the compuijei'. If,- ior-'anyreason; the computer should i have been shifted so that the latch; 2! has been'engaged and been actuated by the "right hand end-stop 1 9 before the lettcr spacing carriagehas reached a position? to be connected with the'colnputertoplace thelatter under its control, as already-ric sc1i'hed; and ifythen; the operator begins toshift the i letter-spacing carriage so that the stop 23 th ereon' may bepositioned to the right'of t'he'latch 21-Whl0l1 latteravill' be occupying a position below the plane of the.

engaging portionofthe stop 23 and would;

therefore, be engaged therebyandfthus pref ventthe carriage from being shifted"to position beyond the computer, to the right thereof means must 'be provided/on the bell-crank-lever2l to permitit to latchby" the stop 23: 'To this 'end,' a latching element 2l' is fulcrumedj on the pivot 22 of thebellcrankdever 21fand atone side thereof; This"[ element extends, a horizontaldir'ection;' beyond the 'endof the bell-crank-lever" 21,

and,' at it'lowerend, -carries a pin 2l fadapt edto engagethe edge of the lever '21, as shown, and is controlled by a spring 21" thejfu nction fof Which is tohold the pin 21 .r

against theedge of-the' lever; as descriloed'.

It will bel'seen, therefore, that When the ini clinedif ace 23? of-the stop 23 onthe lettered spacing carriage moves into engagement with the latch-element 21 it will rock the" same on its fulcrum 22 andpermit the Stop 23 to pass beyond said element; At the same time, the spring 21f Will have been tensioned so th t, awh n h stop i enga .irom he latching element, 21%; and as the l ovver endf 1.;

of vthe bell-crank -lever is still in engage- 7 mentlwith the end-stop 119, said spring will, re-position said latching element 21*, so that,

h n th le pa gncarriage is being moved in the opposite direction to its 'start- ,1 r

ing position, the stop 23 will engage th'e lie bell-crank structure, includingthelever 21,", and'thereby connect the computer With the,

letter-spacing carriage to shift the former:

. to starting position, as heretofore described, To the endcthatthe rackvhar 17, already referred to, may be accurately disposed in;

order. that. the teeth thereon will occupy positlon cor-respondlng to the .teeth on a rack-ban 3-6,"constituting. V a componentv of.

the pescap'ement-mechanism 37 l which. cons trols the letter-spacing carriagefsaid bar is: preferably provided with means .for' adj usts'i-r ing it ,longitudlnally... ,These" meansnpref;

i erably comprise a sleeve. .l7iqlextendiiig through the)mencrloer. 2 of the line spacing carriage and provide"at one; end with an square -socket. l7 adaptedgto receive the"=' square endof the rack-bard? :to prevent anyf rotative itmovement of the: latter. i- At the-"- bemg accomplished with OPPOSltB end, the sleeve is'threaded to re- 18 ceive an adjusting screw 17. The sle'eve is' externally threaded to receive two clamplng nuts 17 which are adapted to engage the opposite facesof the side-members 2 of, the line-spacing carriage, the object of-wh1ch-1s to hold the sleeve'17 fast to the sides 2 of the carriage; -Thus it is seen that the bar 17, being loosely mounted in the socket '17" of the sleeve 17, prevents rotative moveat both ends in the manner as described, ad-

j ustment in either direction may be obtained. When one of the adjusting screws is turned, the one at the opposite end must be turned to take up lost motion.

It willbe understood that the stops 18 are adjustable on bar 17 to position the computer in predetermined positions corre sponding to the columns on. the work-sheet. Means are also provided to assist the operator in locating the letter-spacing carriage to a position corresponding therewith. These means consist of a scale member 38 attached to the forward-end of the computer. scale being stationary, with the computer, when the lat-ch24 is abutting against any of the stops 18, the regular typewriter-pointer 39, (upstanding from the top plate of the letter-spacing carriage and in juxtaposition to the plane of the scale 38) may readily be positioned to a location in reference to the scale corresponding to the number of figures in the amountbeing computed.

In Figs. 11, 12 and 13 I have disclosed a modification of certain parts of the structure already described: The main difference in the modification is that the plurality of stops on the stop-carrying bar 17 are dispensed with and other means provided, in

lieu thereof, for enabling the operator, to

control the positioning of the computer in both directions of its movement: With this difference in mind, it will first be observed that a somewhat difi'erent form of rack-bar is employed. In this instance, the rack-bar 40 is provided with ratchet teeth 40%. Adapted to oa erate therewith is a computer-arresti'ng means which, in this instance, is a two-armed element 41 pivoted at 42.011

the side of the computer and controlled by a spring 43 secured to its upper end and to the side of thecomputer. v j p the spring is tohold the arm 41 of the element in engagement with the teeth of the rack-bar 40. Means are provided, under the control of the operator, for disengaging said arresting element 41 from" the rack. These means, in the form which I'herein illustrate, comprise a transverse bar 44 sup ported at the upper end of two arms 45' which, at their lower ends, are pivoted tothe sides 2* of the line-spacing carriage and are The function of 7 adapte'djto ro'ck upon the axi 46. The bar 44 is adapted, to be actuated simultaneously withjtheactuation ofthe escapemen't-mech anism 37, alreadyreferredto,and which is under the control of-the operator. The connection between the escapem'ent mechamsm and the bar 4-4is, in this instance,a slide or plunger 47 shiftable in "a guide-Way 48 in the. top plate'of the letter-s acing carriage; This slide carries'a depending lug 49 adapted to. be shifted into engagement withthe As the .bar- 44 .is of the width of the bar 44.

line-spacingcarriage, it will be seen that, no

matter what position the "letter-spacing car riage may occupy withrelation tot-he line spacing carriage, the lug 49-can always be positioned against the bar 44 to'move it against an arm 4l of the arresting-element 41 to actuate the latter. As soonas released by the bar 44the= computer,- under the influenceof the propelling mechanism, already described, will'be'shift'ed toward the right until arrested by an "upstandingprojection 50 of the plunger 47. Theeomputer will be I held in contact with this upstanding projection 50'as long as the escapement "of the letter-s acin carria e 37- is disen a ed from L) b D its rack 36;.but as soon as the escapementree'ngages itsrack theplunger 47 Isacted upon to give 1t a retrograde movement and the spring 43 will'actuate the pawl'4l into holding engagement with the teeth ofrackbar 40. This, ofwcourse, allows theletterspacing :carriage to be moved space-by space 1 across and beyond the computer, as .for'writing or for the printing of numbers; but as soon as a transversexrelea se lever 51 (which, 1

is actuated by the operator to. controlthe positionof the escapement 37 with reference to the rack 36) is again depressed'todisengage the escapement from its rackfor either a returnof the letter-spacing carriage or for'a' jump to the right, (as for another column, say) the, aforementioned plunger 47 will cause the computertobe unlocked fromthe bar and through the fselfpropelling "means to be againprojectedto the right until arrested. by the upstanding projection 50 of plunger 47. ,T;he:movement of the plunger is accomplished by. the, depressing of the outstanding arm152;from a shaft 53 and connected to akey 51 by a link 54 the escape- I n e nt 3.7 being mounted on shaft 53 and rotativel'y shifted to. disel igage from .a letter-w transverse releasekey 51 connecting with an toothed portion 47 of the plunger47h Thus it is seen, that thedepression of. the transjverse key 51 will rock the shaft 53 and the escapement 37 and cause the plunger 47 to be moved rearwardly to release, the com--v pu'ter from engagement with the bar 40.

Theabove described mechanism will allow the computer tolbe positioned anywhere along the line of writing and in a co-acting and operable position with the letter spacing carriage.

- In the employment of computers connection with typewriter machines,-it is frequently desirable, and some times necessary,

to utilize a tabulator-device in conjunction therewith. ,As it is a feature of my., invention to control-the positioning of the computer through a shiftable carriage, I, have devised means "whereby the computer may be controlled and located through theletterspacing carriage and primarily by a tabulator-device carried in part thereby: In Figs. 14, 15 and 16 I .have illustrated an exempli fication of an embodiment of such afstruc ture, and this willnow proceed," to describe: I In this embodiment; the computer 1s sup ported in the manner already described,

' namely, upon the line-spacing carriage. The

tabulator-device 6 is supported upon the letter-spacing carriage, as aforementioned. The

form of tabulator-device which I'Ymay emloy is disclosedin United States ,Lettersatent No, 970,433, granted September 13th,

' 1910. For the purpose. of this disclosure, it

' will s'ufiic'e to state that this; tabulator comprisestwo component parts, to-wit, an actu-i ating-element and a stop-supporting element,

the latter arranged in posi tion to permlt engagement of the stops carried thereby by the actuating ,elementf This actuating element includes abell-crank lever 52 fulcrumed and slidab'ly supported upon a shaft' 53 suitably'mounted onthe top'jplate of the letter-spacing carriage. The lever has a horizontal arm 54 overlying the top plate of the letterfspacing-carriage. Disposed in a plane above the normal position of the arm 54 is a stoppar'ryin'g bar 55 upon which are adjustably. supported one or more engaging stops 56. :The rocking of the bell-cranklever upomits fulcrum will positionyt-he arm 54 so thatuit will engage one or another of the stops and, thus, arrest the carriagejat any predetermined point as fixed by theparticm lar stop, in the usual manner, and in accordance with the operation of" this structure,

' fully described in the/aforementioned patent.

Also overlyingthe arm .54 is an arm 57 "can ried' by. an escapernentmechanism (not shown) and adapted to be elevated therewith when the same isirocked, as 'alread described. =Upstanding from thejarm 'v5 j-is a lug 58 which is adapted to engage atra'nsverse rod 59 carried bytwo arms 60 pivoted to the front rail 61 of the line-spacing carriage.

The structure just described is actuate an arresting device carriedby the computer, as will be presently described.

It is to be understood that the operation of the tabulator mechanism simultaneously,

adapted to actuates the rod 59 and thereby operates the latching deli ice, to be described, whereby the computer is released to travel under the impulse of the computer-propelling mechanism,-

ward end two arms or projections 62, 62.

aforementioned,

vice, as shown, comprises the following, structure: The computer carries at its for- Fulcrumed at 63 between these arms is an,

arresting stop or latch member 64, the lower portion of which is adapted to engage with one or another of theaforeinentioned tabu-' lator-stops This latch carries a pivoted finger 65 wh ch is heldin a forwardly-extended operative position by a spring 66 and limited in its swinging movement, in one 1 direction by a: stop 67' and in the opposite =directi-0n2 by a stud 6 7 provided on its rear face with anengaging finger68 which overlies the rod 59. The raising of the rod 59,.in' themanner already descri ed, by engaging it with the finger 68-,

The latch, 64 is v will lift the finger 68 to cause the latch-64 tobe rocked on its fulcrum 63'. This operation tenslons a spring 69, the function of which is to return the latch to normal 0- sition when released, after the tabulator as i been actuated. When the latch 64 has been rocked on its fulcrum 63, asdescribed, it will disengage it from the tabulator-stop which has been operating to hold the computer. The movement of the latch 64 positions the finger 65 into the path of the next tabulator-stop to the right.,The loose finger 65 is, as shown, normally in advance and to one side of the abutting edge of the latch 64. At the time that the latch 64 is in ger 65 will occupy a position in advance of the abutting edge of'. the tabulator stop. When, however, the latch 64 has been actuated and rocked upon its fulcrum, it will pass the stop and permit the computer to move toward the next, stop at the right,

The movement of the latch 64 will have positionedthe-finger 65 in the path of the next adjacent tabulator-stop at the right so that it will engage therewith and be moved against the stud 67*, which will aline the active edges of the finger 6'5 and the latch 64. When the operator releases her hold I upon the bell-cran engagement with the tabulator-stop, the finr-lever 52, it will drop to permit the rod 59 to return to normal p0 sition and this will permit the spring 69 to perform its function of returning the latch to an abutting position against the stop, thus allowing the finger 65 toagain resume its normal advanced position under the influence of its spring 66. This SPIHI 66 W111 beof sufficient strength to causelt e finger 136 to act as a cushioning element when it engages the tabulator stop. Each actuation of the tabulator-device, in the manner described, will permit the computer to move to the next adjacent stop at the right. If, for any reason, it is desired to perm t the computer to move to the next stop wlthout operating the tabulator bell-crank lever, the latch 6% may be provldcd with an arm TO, and with this, the latch may be rocked on its fulcrum, to disengage it from the tabulator stop.

As this latch is so disposed as normally to be in the path to engage each tabulator-stop, it is desirable to provide for a latching-by of the latch when the computer is being returned to starting position. To this end, each of the tabulator-stops is provided with a; spring-actuated abutment-piece 56 and it is this piece which is engaged by the active edge of the latch 64:. The latter is provided with an inclined face 64: which cooperates with a. similarly-inclined face 56* on the abutment-piece 56 to rock the same on its fulcrun'i and permit the latch to ride over the same.

From the foregoing, it will be seen that I have provided, first, a traveling computer and, secondly, means for controlling the position of the computer whereby it may be arrested in its traveling movement at a .predetermined point corresponding, for instance, to a particular column of the worksheet. VVhile I am aware that it has heretofore been proposed to shift a' computer upon its support, yet, so far as I am aware, this has been done only manually and not by means such as I contemplate. As seen, the computer-controlling means comprise various structures, and these I have described in more or less detail. It is to be understood, however, that, in view of the novelty of my structure generally, I do not confine myself to any particular construction or structure for subserving the de scribed function. Therefore, when I refer to as being adapted to carry out this function. Having thus described certain exemplifications of structures and mechanisms for carrying my invention into effect, what I claim is: I

1. The method of cross footing in adevice having the usual computing mechanism H and controlling mechanism therefor rela" tively movable for the insertion of a number, digit by digit; which consists in producing a movement of one of said mechanisms successively from column to column and a movement of the other of said mechanisms step by step in a column and while being movable for a. predetermined distance 7 in advance of the other mechanism which has a step by step movement past the firstmentioned mechanism both said movements being in the same direction, said mechanisms also having a simultaneous movement in the reverse direction.

3. A structure of the kind specified including in combination, a support, a. carriage, a computer movable independently of the carriage and ada ted to produce a computation and shiftalile independently of said carriage for producing lineal oomputation,v norm-ally inactive cooperating means carried by said carriage and computer, and means carried by said support for causing mutual engagementiof said cooperating means whereby saidcomputer will. be shifted on its support by said carriage iii at least one direction;

4:. Ina typewriter having a carriage and direct. normally inactive cooperative" means ,L'fcarried by the carriage and com pater and which is broughtinto action "by the". relative movement in "one direction of theflcomputer and the support for connecting the'carriageand computer during their movement relative to said, support in the other direction. 5. In a,,typewriter, the combination of a carriage,- a support upon which the carriage is shiftably mounted, a computer shiftably mounted on said support independently of said carriage, normally-inactive coiiperatherein to means or mechanlsm for control-"- ling the computer, the understanding is to be that such means or mechanism comprise. any one or more of the structures referred ng means carried by said carriage and computer and eng-ageableto shift said computer on its support in one direction, means carried by said support and independent of said carriage and computer for efi'ecting a connection between 'the cooperating means of said carriage and computer, and-means independent of the carriage-moving means for effecting a travel of' 'the 'computer on its support in the opposite direction for producing lineal computation} v 6. Ina-"typewriter, the combination of a support, a carriage shifta-bly mounted thereon, a computer on the support and movable independently of the carriage and,

shiftable in one direction under the control of the carriage, means carried by the carriage and computer and normally inactive but adapted to'be brought into coacting conthe support independently of the computer and disposed to-travel in juxtaposit on to the computer, carrlagemoving means forefiecting travel of the carriage inrelation to the computer, means independent of the carriage-moving means for effecting travel of the computer independently of the'carriage, normally-inactive means cooperating with the carriage and rendered active when the computer is moved in one direction, and

means disposed in the path of movement of the normally-inactive means to render the same inactive when the carriage and" computer travel in the opposite direction for releasing the computer from the control of the carriage.

8. Ina typewriter, the combination of a support, a computer movably mounted thereon, a carriage mounted on the support independently of the computer and disposed to travel in juxtaposition to the computer, means normally inactive but, adapted to be brought into play byftherelative movement of the carriage and support for,"

connecting the carriage and computer,

means independent of the carriage and car-1 ried by the computer for .efi'ecting such relative movement, means mounted on the su'pport'independently of the carriage and computer for positioning the normally-inactive means to connect the computer to the carriage whereby theformer, under the control of the latter, is caused to travel in one direction, and means disposed in the path of movement of the nonnallydnactive for ele ing 'saiqm'm eter means for rendering the sameinactive when the carriage and computer travel-in the opposite direction for releasing the computer from the control of the carriage.

9. A structure of the kind specified in''- cluding in combination, a carriage and a computer relatively movable, "a support relative to which the carriage and computer are movable in the same direction, means mounted on the support for moving said carriage for theinsertion of a number digit by digit, means on the computer and independent of the carriage-moving meansj'for moving the computer on its support succes= sively from column to column, both of said movements being in the same direction and actuating means connected to the computer for releasin it for movement under thel in- I cludlng in combination, a support and a fluence of t 1e computer-moving means.

10. In a typewriter, a support, a computer dlsposed thereon, a carriage mounted on said of i said computer,

support-independent of said computer, a Y

tabulator mountedjon said carriageand ar rangedwhen operatedjtorele'ase and control said' carriage, and norntally-inactive means interposed between; said tabulator and computer and made active the operationof said tabulator whereby said. computer-will also be released.

" 1-1. 'Ina typewritefi a support, atraveling- I 75 on'said suppxort against anyone of which 1 computer disposed thereon, a series of stops" the" computer: rests, a'tabula'tor arranged in juxtaposition 't said computer and stops, and normall tween said] made active ulator and computer and; he operati'onof said tabulad "computer from said stops have a traveling a'support, a traveling here0n',"'a traveling carries of stops mounted on'f-said supportand active means interposed bedsupport independent I a tabulator mountedjcn-i; said carriage and "traveling th mith x a a e0 "against one o'f which $3416 taloulator a d "computer abuts, and means-interposed-be tween'said tabulator and computer and op erated by said tabulator forfreleasmg-said computer from said stops whereby "said computer will have a"travelingniovement until a againarreste-d by another step in theseri'es and the carriage will have a traveling moveting against said. stop.

13. In a typewriter, a sup movably sup-ported thereon,means carried i by the computer for' efifectingtravelofthe computer on itssupport,'means mounted on mounted on and movable with the computer tion offsaid mngm'ea ns. 1 1 L. Astructuredthekind described in eluding,ingcombinatiom'ia support; a com- I '-i1 puter relatively movable thereon in relation"; 1 is to columns on a workheetimeans for main- 1' taining thecomputer at rest at successive points in relation' 'to the columns on the v for effecting-fa cycle of travel of the commen-tuntil arrested by; saidtabulator abut- 1'60 "ort,'a computer against the art- 110 work-sheet, means carried by the computer f? puter on'its support successively from col-1120 u-Inn to column'andalwaysin the samedicomputer, and means under-the control of the actuating member for releasing the comcomputer relatively movable, an actuatingrection, an actuating member carried by the 5 f member carried hy-the computer, means 130 mounted on the support for maintaining the computer at rest, and means under the con trol of the actuating member for releasing the computer from the rest-maintaining means whereby the computer may be shifted.

16. In a typewriter, the combination of a support, a-computer movably mounted thereon, computer-propelling mechanism for effecting travel of said computer on its support, a carriage mounted on the support independently of said computer and having letter-spacing movement in juxtaposition to said computer, an escapement mechanism mounted on said carriage and traveling therewith to control movement of the same when'letterspacing, a tabulator mounted on said carriage to travel therewith and o-per able to disconnect the escapement and thereby place the carriage under control of the tabulator and to release the computer for travel independently of the carriage. p

17. A structure of the kind specified, in.- cluding a sheet-supporting instrumentality, a carriage, a single computer shiftable in relation to said sheet-supporting instrumentality and having a plurality of operative positions with respect thereto and adapted to efi'ect a columnar-computation. at each of said positions and, also, a total-computation of all of said columnar-computations, and

means on said carriage and computer normally inactive but adapted to be made active when the carriage and computer are brought into juxtaposition by a movement ment thereon, a lever carried by the computer, holding means carried by the computer, and shifting means also carried by the computer to shift it when the holding means is released by the operation of the lever thereon.

19. The combination, in a fiat-platen typewriter, of a line-space carriage, a letterspace carriage having letter-space move.

ment thereon, a bar mounted on said linespace carriage, spaced stops 'on the bar, a computer mounted on said line-spaoe carriage independently of said letter-space carriage and having movement thereon, a lever carried by said computer, and means carried by said computer and engageable with the spaced stops when said lever is in its normal position and being free of said stops when said lever is out of normal position.

20. The combination, in a fiat platen typewriter, of a flat-platen, a line-space carriage having line-space movement thereover, a letter-space carriage supported by the linespace carriage and having letter-space movement thereon, a computer sustained by the line-space carriage independently of the letter-space carriage and having movement thereon, a barmounted on said linespace carriage, spaced stops on the har,hold- .ing and moving means carried by said computer, said holding means being engageable with said spaced stops and held thereagainst by said moving means, and a lever carried by said computer and acting to release said holding means from the said stops and allow the moving means to shift the computer until again arrested by the holding means abutting against another stop.

21. The combination, in a fiat-platen typewriter, of a flat-platen, a line-space carriage adapted to have movement thereover, a letter-space carriage supported by the linespace carriage and having movement thereon, a projection on said letter-space carriage, a computer supported by the linespace carriage independently of the letterspace carriage and having movement thereon, a bar mounted; on the line-space carriage, spaced stops and cams on the bar, holding means carried by said computer and engageable with said stops, an'actuating lever carried by said computer and operable to move said holding means away from said stops, moving means carried by the computer for holding the holding means against the stops and for moving the computer in the direction of the line of Writing until again arrested by the holding means abutting against another stop when released from the lever, returning means carried by the computer and" actuatable into the path of movement of the projection on the letter-space carriage by one of the cams on the bar, the projection during return of the letter-space carriage abutting against the returning means to cause return movement of the computer until the returning means is released from the projection on the letter-space carriage by another cam on the bar.

22. The combination, in a typewriter, of a line-space carriage, of a letter-space carriage 'shiftably mounted thereon, a computer "movably mounted on said line-space carriage independently of said letter-spaoe carriage, a series of stops mountedon said linespace carriage, means on said computer for engaging one of said stops, and means car-v ried by said computer for holding said engaging means againstthe stop.

23. The combination, in a typewriter, of a line-space carriage, of a letter-space carriage mounted thereon, a bar provided with rack-teeth and mounted on said line-space space carriage and including gear: meshing W1tha1d rack; pinion! attached to said e th e h ng w t P and 'a' pr n ,for revolving said spring' drum andgears whereby 9n' ovement'v of the computer isfe f.- fected :"i

"'Q L The' combination; in a 'typevvriter, of a: fl a e l ne-spac i g ha n movement over s'aid platen, "a letter cpacje carriage having 'lnovement on the line-space carriage, a compute'if supported. by said'linespace carriage andf hjaving mov'enient thereon, a spr ng drum jcarriedby said 601111311181 for moving the same in the direction of the line'of writing, a ba r' on said Iine spjace carriage,;st0ps andcams'on the ba'r, a latch on said com uter engzigable with said 3 stops,

said computer and normally out of the path :of movement'ofisaid projection and mov- .actuatin Vputer and opera able into the path ofmovement thereof'and movable to permit the projectiontopa ss. in

Pine d' ionlw n sa dbe n i i t Pa h.0 ai .,P j6 i1 't 26;; Thecombination, ina flat-platen type- Wi' enjo a fla rpla eit ;.1 e.-'spacecarriage, f t erp r i ge hi ably m u e on said",line-space carriage, fa computer A l if al w i .ni mtd 9 lfsa d n pac a ns m r at n e ame a, a nve ed 1 id M ep c rriage, pac d ide il. he ar, 'i l tch] a Bdl y, id m i f a en a w h s id s ops, lever carried by Said com le to liftsaid latch; away Qm s st ps; h v 'ri .b .ng i lse p able Without lifting the latch away from saidstops. Y 27; The combination; in'a typewriter, of

a line-space carriage, aletter-space carriage, aproj ection thereon, "a 'coi'nputer mounted on said line-space carriage, means carried by said .computerflfon moving the samein riage, reverse-acting cams on the bar, a bellcrank mounted on said computer and movable into and out of the path of movement of the projection on said letter-space carriage, space carriage to release and control the same, and spaced stops on said line-space carriage against which said tahulator and computer abut to position the same, said computer being releasable by said tabulator from said stops to cause one of the said cams to position said bell-crank into the path of in temeht p156) sp'acecarif d carriage when sa d can tge 11s ofpei a ting to movesaid co cludin in combination,

" epi gag n' "me s r said stops,an d anop'eratingjmean c ri'ed gageable means fro 'e ri dfb he om et a tabulator mounted onsaid letter-- return said w 1 said pro ect1on while'saldco p.

return d; and said -coi1j1putei vvard direction to abut agjaln t firs of the series when the bell-crank'isrele e from the projection;and. while the letterspace-carriagc 'is moving tlon.

structure I r of p ar i d the eby, TQi lIfig Im d m l rt a ffm eblet 5011,

ipu e'ra d n rmally, .n b e j by thecomputerv'for "disengaging p d n, .cmb' f on, of stops"carried'th'ereby acomp a e n sa d; upp t," oneejng gmg ,v

andhorniall gageable with one of aid is I 9 actuating member also carried neol ls ly displacesgithe op n' a inghii -s mj jeng dst p;." "L 3Q A fSi7I11Cli11lf B 'o f the jk gd'de; rlbed ndi gi q bin iow supp t iagle. ad p ed t t i the??? adapted to tr'aveljo"; thesup'p cntly ofsaid ca'ri W said support for ar ave g ment ;of e Co put r, ct a ing m berfcarried by the'conipu "zl pperabl'e, T 5 whe'ngmoved, torelea sethe 'Qll'll te in an enga e te his. perm t n I P1 6 a e; Y li lg lllpV fi ewe -sadn ss at i 13 A eifv iip tfc m n including the usual computing and contibllin'g mechanism th L mme r m j l mfi t ll plfl'mn an ne y m v ble or t e. nsfliohfn N be digit brid e' t,.a lfvffsiidq 115 being in the same direction, means for hold .ing one of said mechanisms; stationaryyghile one direction, a bar on said line-space car}. he other mechanlsm is" movin "step-by- "step,

column the mechanism vvhich hadbeen staand means 'for moving from column to Ina device for performing eross footing havingthe'usual computing mechanism andjco n'trolling mechanism there-for -1-e1atively movable forthe insertion ofifl'a *num ber, means for movin I ni'sms'di'git by digitwhile the other mechanism is stationary, and means for moving said other mechanism from colu'mnto" col- 'umn, both 'of said-movements being in the samedirection for the cross-footing operaa 3.4. In amachine for performing crossfooting computations, the" combinatiomo'ff computing l mechanism and" controllingmechanism therefor relatively movable for the insertion of 'a'numberj digit by digitiin columns and alsdmovable from columnto column, both of said movements being in the same direction for the 'cross ifootin operation, independent means for moving said mechanisms digit by digit and from "column to column, and individual means for holding said mechanisms stationary ivh'ile said moving means are not being operated;

the action o'f'sald moving means;

and "for holding said mechanisms "against In a device" for perform'ing" crossfooting computations,- the combination of computing and" controlling mechanisms,-

meansfor moving one of said mechanisms I "said mechan'lsms.

digit by digit in acolumn and from column to column, means forholding said mechanism 4 againstthe "action of [said moving- "means,

computing mechanism "and i said movements being for the cross-footing operation.

means for moving the other mechanism from column to c01un1n,"ahd means for holding thatdl'iechani sm in a -column,bo.th of the same direction 36. The combination in a" machine for performing cross-footing"computations, of controlling mechanism therefor relatively movable for the insertion of numbers digit by digit in I eration, means for moving one of said mecha means, and means tor then holding that mechanism stationary p0 while the otherof said mechanisms is movcolumns and' also movable from column to f'coliim'n, both of these movements'he in'gin the same direction for the cross-footing opin a column-position ing space-by-space in said column".

{Cppies of thi's patent mai'be obtained to one of: mechar five cents each, by. addressing 'washingtomm; 0. I

= 37; Thecomhlnation with a typewriter,

offa platen, a carriage provided with com- -putter-controlling mechanism and having vmovement over the platen, a computer hav- "ing mov em ncover' the platen and arranged "to be 'govefnedby said controlling mechanism, the movements of the computer and the controlling mechanism being in the same direction forcross 'footing operations, independent means for moving the carriage and f computer in the same direction and at difi'erent'ti'mes, and meansfor arresting the movements of said mechanisms independently of each iother for the purpose of T'performing cros'sQfoOti'ng computations. v

38." The combination with a typewriter;

39. The combination wi tha flat-platen typewriter, of a support, a earriage movably mounted thereon, computer c'omtrolhng 1nstrumentalities disposed thereon, a computer moYably'm-ounted on the support in juxtapo- Sit 1611 to sald controlling instrumentalities 1 and adaptedto be operated thereby, means for movin the carriage and controlling instrumentalities, and means for moving the computer; one of said mechanisms having a (letter; space movement and the other havinj'a column-space movement, both of said movements being "in the same direction for cross-footing operations;

In testimony yvhere'ofI aiffiXm y signature "in presence of two Witnesses.

E'DWARDC. WALTER. V 'Witnesses:

7 )HAnLEs PJBALIL,

II'W. AMBROSE. j-

the Commissioner of Patents, 

